[Lore Update]: The Aspect of War

Was reading up on Aatrox's new lore & this caught my eye.

"It is said that the Aspect of Twilight gave mortals the knowledge to trap the darkin, and the newly reborn Aspect of War united many in fighting back against them."

Obviously, this is most likely Pantheon in the new lore. If this is the case, this opens up a few questions;

• How did Pantheon come to be? How did he & Atreus meet?
• How does he feel about Taric & Zoe? His views on the Darkin Race?
• What is his role in the current lore?

*As someone pointed out, Pantheon isn't the name of the Person who became the aspect, but rather Pantheon is the Aspect of War itself. I did not know this prior & have changed a few of my questions accordingly.